Performs SMIL-dtbook relations checks:
smil_textSrcResolves
text element src attribute URI resolves
dtbook_SmilRef
Each dtbook element referenced from smil contains a smilRef attribute
pointing to the smil element that references it
Performs SMIL relations checks:
smil_metaDtbUidValue
dtb:uid meta element content attribute matches value of package
unique-identifier
smil_metaAudioDtbTotElaAccurate
dtb:totalElapsedTime meta element content attribute value represents the
total time elapsed up to the beginning of this SMIL file
smil_manifestRefs
SMIL only references files that are items in manifest
smil_srcDtbook
src attribute on text element references dtbook file
smil_srcAudio
src attribute on audio element references audio file
smil_srcImg
src attribute on img element references image file
smil_hrefSMIL
href attribute on the a element points to a SMIL file
Performs package file spine integrity checks:
opf_SpineRefAllSmilInMnf
Each smil file listed in manifest is referenced by spine
opf_spnItemRefIdrefSmil
spine itemref idref attributes points to the id of a SMIL file listed in
manifest
opf_xMetaTotTimeAccurate
x-metadata dtb:totalTime value is the sum of the durations of all SMIL
files in the spine